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Is this compatible with 10mm ? — 1 Answer

by James, from WA, United States Asked on August 30, 2021

Name Stern Defense SD BU40 Original .40 S&W Bolt Carrier for AR-15 Glock-Pattern Upper Receiver (5)
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Answered by Ethan, Gear Expert, from IL, United States, on April 07, 2022

Yes. The Stern Defense SD BU40 Original .40 S&W Bolt Carrier will fit and function with 10mm as well as .40 cal. It functions with Colt SMG, Glock magazines and it's fully compatible with standard AR15/M16 charging handles.

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